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共有 1 个文件被更改，包括 59 次插入 和 35 次删除
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+59 -35test/tutorial/tut03.cpp
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test/tutorial/tut03.cpp
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| @@ -80,10 +80,13 @@ public: | |||||
| m_deltascale[i] = 1.0; | m_deltascale[i] = 1.0; | ||||
| m_dirty[i] = 2; | m_dirty[i] = 2; | ||||
| } | } | ||||
| m_center = -0.75; | |||||
| #if defined __CELLOS_LV2__ || defined __native_client__ | #if defined __CELLOS_LV2__ || defined __native_client__ | ||||
| m_zoom_speed = -0.0025; | |||||
| //m_center = f64cmplx(-.22815528839841, -1.11514249704382); | |||||
| //m_center = f64cmplx(0.001643721971153, 0.822467633298876); | |||||
| m_center = f64cmplx(-0.65823419062254, .50221777363480); | |||||
| m_zoom_speed = 0;//-0.0025; | |||||
| #else | #else | ||||
| m_center = -0.75; | |||||
| m_zoom_speed = 0.0; | m_zoom_speed = 0.0; | ||||
| #endif | #endif | ||||
| m_radius = 5.0; | m_radius = 5.0; | ||||
| @@ -207,11 +210,7 @@ public: | |||||
| zoom = 1e-14 / m_radius; | zoom = 1e-14 / m_radius; | ||||
| } | } | ||||
| m_radius *= zoom; | m_radius *= zoom; | ||||
| #if defined __CELLOS_LV2__ || defined __native_client__ | |||||
| //m_center = f64cmplx(-.22815528839841, -1.11514249704382); | |||||
| //m_center = f64cmplx(0.001643721971153, 0.822467633298876); | |||||
| m_center = f64cmplx(-0.65823419062254, .50221777363480); | |||||
| #else | |||||
| #if !defined __CELLOS_LV2__ && !defined __native_client__ | |||||
| m_center = (m_center - worldmouse) * zoom + worldmouse; | m_center = (m_center - worldmouse) * zoom + worldmouse; | ||||
| worldmouse = m_center + ScreenToWorldOffset(mousepos); | worldmouse = m_center + ScreenToWorldOffset(mousepos); | ||||
| #endif | #endif | ||||
| @@ -369,7 +368,8 @@ public: | |||||
| #endif | #endif | ||||
| "attribute vec2 in_TexCoord;" | "attribute vec2 in_TexCoord;" | ||||
| "attribute vec2 in_Vertex;" | "attribute vec2 in_Vertex;" | ||||
| "void main(void) {" | |||||
| "void main(void)" | |||||
| "{" | |||||
| " gl_Position = vec4(in_Vertex, 0.0, 1.0);" | " gl_Position = vec4(in_Vertex, 0.0, 1.0);" | ||||
| #if defined HAVE_GLES_2X | #if defined HAVE_GLES_2X | ||||
| " pass_TexCoord = in_TexCoord;" | " pass_TexCoord = in_TexCoord;" | ||||
| @@ -391,73 +391,93 @@ public: | |||||
| "uniform mat4 in_ZoomSettings;" | "uniform mat4 in_ZoomSettings;" | ||||
| "uniform sampler2D in_Texture;" | "uniform sampler2D in_Texture;" | ||||
| "" | "" | ||||
| "float mylen(vec2 p) {" | |||||
| //" return abs(p.x) + abs(p.y);" | |||||
| " return 0.001 + p.x * p.x + p.y * p.y;" | |||||
| //" return 0.001 + length(p);" | |||||
| "float mylen(vec2 p)" | |||||
| "{" | |||||
| " p *= in_TexelSize.zw;" /* Correct for aspect ratio */ | |||||
| //" return 0.001 + abs(p.x) + abs(p.y);" | |||||
| //" return 0.1 + length(p);" | |||||
| " vec2 q = p * p;" | |||||
| " return 0.01 + q.x + q.y;" | |||||
| "}" | "}" | ||||
| "" | "" | ||||
| /* Get the coordinate of the nearest point in slice 0 in xy, | /* Get the coordinate of the nearest point in slice 0 in xy, | ||||
| * and the squared distance to that point in z. | * and the squared distance to that point in z. | ||||
| * p is in normalised [0,1] texture coordinates. | * p is in normalised [0,1] texture coordinates. | ||||
| * return value has the 0.25 Y scaling. */ | * return value has the 0.25 Y scaling. */ | ||||
| "vec3 nearest0(vec2 p) {" | |||||
| "vec3 nearest0(vec2 p)" | |||||
| "{" | |||||
| /* Step 1: center point in [-.5,.5], apply zoom and | |||||
| * translation transformation, and go back to texture | |||||
| * coordinates in [0,1]. That's the ideal point we | |||||
| * would like to compute the value for. */ | |||||
| " p -= vec2(0.5, 0.5);" | " p -= vec2(0.5, 0.5);" | ||||
| " p *= in_ZoomSettings[0][2];" | " p *= in_ZoomSettings[0][2];" | ||||
| " p += vec2(in_ZoomSettings[0][0], -in_ZoomSettings[0][1]);" | " p += vec2(in_ZoomSettings[0][0], -in_ZoomSettings[0][1]);" | ||||
| " p += vec2(0.5, 0.5);" | " p += vec2(0.5, 0.5);" | ||||
| " vec2 q = p + 0.5 * in_TexelSize.xy;" | |||||
| /* Step 2: find out the (rounded) texel coordinates in | |||||
| * the half-resolution slice. We use an offset of 15/32 | |||||
| * instead of 1/2 to avoid rounding issues at edges. */ | |||||
| " vec2 q = p + 0.46875 * in_TexelSize.xy;" | |||||
| " q = in_TexelSize.xy" | " q = in_TexelSize.xy" | ||||
| " * (1.0 + 2.0 * floor(q * 0.5 * in_TexelSize.zw));" | " * (1.0 + 2.0 * floor(q * 0.5 * in_TexelSize.zw));" | ||||
| /* Step 3: go back to full-resolution texel coordinates | |||||
| * so that we know the error between the pixel we get | |||||
| * and the pixel we wanted. */ | |||||
| " vec2 r = q - 0.5 * in_TexelSize.xy;" | " vec2 r = q - 0.5 * in_TexelSize.xy;" | ||||
| " float l = (abs(q.x - 0.5) < 0.5 && abs(q.y - 0.5) < 0.5)" | |||||
| " float l = (abs(q.x - .5) < .5 && abs(q.y - .5) < .5)" | |||||
| " ? 1.0 / mylen(r - p) : 0.0;" | " ? 1.0 / mylen(r - p) : 0.0;" | ||||
| /* Step 4: return final texel coordinates and | |||||
| * corresponding error value. */ | |||||
| " return vec3(q * vec2(1.0, 0.25), l);" | " return vec3(q * vec2(1.0, 0.25), l);" | ||||
| "}" | "}" | ||||
| "" | "" | ||||
| "vec3 nearest1(vec2 p) {" | |||||
| "vec3 nearest1(vec2 p)" | |||||
| "{" | |||||
| " p -= vec2(0.5, 0.5);" | " p -= vec2(0.5, 0.5);" | ||||
| " p *= in_ZoomSettings[1][2];" | " p *= in_ZoomSettings[1][2];" | ||||
| " p += vec2(in_ZoomSettings[1][0], -in_ZoomSettings[1][1]);" | " p += vec2(in_ZoomSettings[1][0], -in_ZoomSettings[1][1]);" | ||||
| " p += vec2(0.5, 0.5);" | " p += vec2(0.5, 0.5);" | ||||
| " vec2 q = p + -0.5 * in_TexelSize.xy;" | |||||
| " vec2 q = p + -0.46875 * in_TexelSize.xy;" | |||||
| " q = in_TexelSize.xy" | " q = in_TexelSize.xy" | ||||
| " * (1.0 + 2.0 * floor(q * 0.5 * in_TexelSize.zw));" | " * (1.0 + 2.0 * floor(q * 0.5 * in_TexelSize.zw));" | ||||
| " vec2 r = q - -0.5 * in_TexelSize.xy;" | " vec2 r = q - -0.5 * in_TexelSize.xy;" | ||||
| " float l = (abs(q.x - 0.5) < 0.5 && abs(q.y - 0.5) < 0.5)" | |||||
| " float l = (abs(q.x - .5) < .5 && abs(q.y - .5) < .5)" | |||||
| " ? 1.0 / mylen(r - p) : 0.0;" | " ? 1.0 / mylen(r - p) : 0.0;" | ||||
| " return vec3(q * vec2(1.0, 0.25) + vec2(0.0, 0.25), l);" | " return vec3(q * vec2(1.0, 0.25) + vec2(0.0, 0.25), l);" | ||||
| "}" | "}" | ||||
| "" | "" | ||||
| "vec3 nearest2(vec2 p) {" | |||||
| "vec3 nearest2(vec2 p)" | |||||
| "{" | |||||
| " p -= vec2(0.5, 0.5);" | " p -= vec2(0.5, 0.5);" | ||||
| " p *= in_ZoomSettings[2][2];" | " p *= in_ZoomSettings[2][2];" | ||||
| " p += vec2(in_ZoomSettings[2][0], -in_ZoomSettings[2][1]);" | " p += vec2(in_ZoomSettings[2][0], -in_ZoomSettings[2][1]);" | ||||
| " p += vec2(0.5, 0.5);" | " p += vec2(0.5, 0.5);" | ||||
| " vec2 q = p + vec2(0.5, -0.5) * in_TexelSize.xy;" | |||||
| " vec2 q = p + vec2(0.46875, -0.46875) * in_TexelSize.xy;" | |||||
| " q = in_TexelSize.xy" | " q = in_TexelSize.xy" | ||||
| " * (1.0 + 2.0 * floor(q * 0.5 * in_TexelSize.zw));" | " * (1.0 + 2.0 * floor(q * 0.5 * in_TexelSize.zw));" | ||||
| " vec2 r = q - vec2(0.5, -0.5) * in_TexelSize.xy;" | " vec2 r = q - vec2(0.5, -0.5) * in_TexelSize.xy;" | ||||
| " float l = (abs(q.x - 0.5) < 0.5 && abs(q.y - 0.5) < 0.5)" | |||||
| " float l = (abs(q.x - .5) < .5 && abs(q.y - .5) < .5)" | |||||
| " ? 1.0 / mylen(r - p) : 0.0;" | " ? 1.0 / mylen(r - p) : 0.0;" | ||||
| " return vec3(q * vec2(1.0, 0.25) + vec2(0.0, 0.50), l);" | " return vec3(q * vec2(1.0, 0.25) + vec2(0.0, 0.50), l);" | ||||
| "}" | "}" | ||||
| "" | "" | ||||
| "vec3 nearest3(vec2 p) {" | |||||
| "vec3 nearest3(vec2 p)" | |||||
| "{" | |||||
| " p -= vec2(0.5, 0.5);" | " p -= vec2(0.5, 0.5);" | ||||
| " p *= in_ZoomSettings[3][2];" | " p *= in_ZoomSettings[3][2];" | ||||
| " p += vec2(in_ZoomSettings[3][0], -in_ZoomSettings[3][1]);" | " p += vec2(in_ZoomSettings[3][0], -in_ZoomSettings[3][1]);" | ||||
| " p += vec2(0.5, 0.5);" | " p += vec2(0.5, 0.5);" | ||||
| " vec2 q = p + vec2(-0.5, 0.5) * in_TexelSize.xy;" | |||||
| " vec2 q = p + vec2(-0.46875, 0.46875) * in_TexelSize.xy;" | |||||
| " q = in_TexelSize.xy" | " q = in_TexelSize.xy" | ||||
| " * (1.0 + 2.0 * floor(q * 0.5 * in_TexelSize.zw));" | " * (1.0 + 2.0 * floor(q * 0.5 * in_TexelSize.zw));" | ||||
| " vec2 r = q - vec2(-0.5, 0.5) * in_TexelSize.xy;" | " vec2 r = q - vec2(-0.5, 0.5) * in_TexelSize.xy;" | ||||
| " float l = (abs(q.x - 0.5) < 0.5 && abs(q.y - 0.5) < 0.5)" | |||||
| " float l = (abs(q.x - .5) < .5 && abs(q.y - .5) < .5)" | |||||
| " ? 1.0 / mylen(r - p) : 0.0;" | " ? 1.0 / mylen(r - p) : 0.0;" | ||||
| " return vec3(q * vec2(1.0, 0.25) + vec2(0.0, 0.75), l);" | " return vec3(q * vec2(1.0, 0.25) + vec2(0.0, 0.75), l);" | ||||
| "}" | "}" | ||||
| "" | "" | ||||
| "void main(void) {" | |||||
| "void main(void)" | |||||
| "{" | |||||
| #if defined HAVE_GLES_2X | #if defined HAVE_GLES_2X | ||||
| " vec2 coord = pass_TexCoord;" | " vec2 coord = pass_TexCoord;" | ||||
| #else | #else | ||||
| @@ -472,12 +492,12 @@ public: | |||||
| " vec4 p1 = texture2D(in_Texture, k1.xy);" | " vec4 p1 = texture2D(in_Texture, k1.xy);" | ||||
| " vec4 p2 = texture2D(in_Texture, k2.xy);" | " vec4 p2 = texture2D(in_Texture, k2.xy);" | ||||
| " vec4 p3 = texture2D(in_Texture, k3.xy);" | " vec4 p3 = texture2D(in_Texture, k3.xy);" | ||||
| //"if (k0.z >= k1.z && k0.z >= k2.z && k0.z >= k3.z) gl_FragColor = p0;" | |||||
| //"if (k1.z >= k0.z && k1.z >= k2.z && k1.z >= k3.z) gl_FragColor = p1;" | |||||
| //"if (k2.z >= k0.z && k2.z >= k1.z && k2.z >= k3.z) gl_FragColor = p2;" | |||||
| //"if (k3.z >= k0.z && k3.z >= k1.z && k3.z >= k2.z) gl_FragColor = p3;" | |||||
| " gl_FragColor = 1.0 / (k0.z + k1.z + k2.z + k3.z)" | |||||
| " * (k0.z * p0 + k1.z * p1 + k2.z * p2 + k3.z * p3);" | |||||
| "if (k0.z >= k1.z && k0.z >= k2.z && k0.z >= k3.z) gl_FragColor = p0;" | |||||
| "if (k1.z >= k0.z && k1.z >= k2.z && k1.z >= k3.z) gl_FragColor = p1;" | |||||
| "if (k2.z >= k0.z && k2.z >= k1.z && k2.z >= k3.z) gl_FragColor = p2;" | |||||
| "if (k3.z >= k0.z && k3.z >= k1.z && k3.z >= k2.z) gl_FragColor = p3;" | |||||
| // " gl_FragColor = 1.0 / (k0.z + k1.z + k2.z + k3.z)" | |||||
| // " * (k0.z * p0 + k1.z * p1 + k2.z * p2 + k3.z * p3);" | |||||
| "}" | "}" | ||||
| #else | #else | ||||
| "void main(float4 in_Position : POSITION," | "void main(float4 in_Position : POSITION," | ||||
| @@ -489,7 +509,8 @@ public: | |||||
| " out_Position = in_Position;" | " out_Position = in_Position;" | ||||
| "}", | "}", | ||||
| "float3 nearest0(float2 p, float4 in_TexelSize) {" | |||||
| "float3 nearest0(float2 p, float4 in_TexelSize)" | |||||
| "{" | |||||
| " float2 q = p + 0.5 * in_TexelSize.xy;" | " float2 q = p + 0.5 * in_TexelSize.xy;" | ||||
| " q -= fmod(q, 2.0 * in_TexelSize.xy);" | " q -= fmod(q, 2.0 * in_TexelSize.xy);" | ||||
| " q += 0.5 * in_TexelSize.xy;" | " q += 0.5 * in_TexelSize.xy;" | ||||
| @@ -497,7 +518,8 @@ public: | |||||
| " length(q - p));" | " length(q - p));" | ||||
| "}" | "}" | ||||
| "" | "" | ||||
| "float3 nearest1(float2 p, float4 in_TexelSize) {" | |||||
| "float3 nearest1(float2 p, float4 in_TexelSize)" | |||||
| "{" | |||||
| " float2 q = p - 0.5 * in_TexelSize.xy;" | " float2 q = p - 0.5 * in_TexelSize.xy;" | ||||
| " q -= fmod(q, 2.0 * in_TexelSize.xy);" | " q -= fmod(q, 2.0 * in_TexelSize.xy);" | ||||
| " q += 1.5 * in_TexelSize.xy;" | " q += 1.5 * in_TexelSize.xy;" | ||||
| @@ -505,7 +527,8 @@ public: | |||||
| " length(q - p));" | " length(q - p));" | ||||
| "}" | "}" | ||||
| "" | "" | ||||
| "float3 nearest2(float2 p, float4 in_TexelSize) {" | |||||
| "float3 nearest2(float2 p, float4 in_TexelSize)" | |||||
| "{" | |||||
| " float2 q = p + float2(0.5, -0.5) * in_TexelSize.xy;" | " float2 q = p + float2(0.5, -0.5) * in_TexelSize.xy;" | ||||
| " q -= fmod(q, 2.0 * in_TexelSize.xy);" | " q -= fmod(q, 2.0 * in_TexelSize.xy);" | ||||
| " q += float2(0.5, 1.5) * in_TexelSize.xy;" | " q += float2(0.5, 1.5) * in_TexelSize.xy;" | ||||
| @@ -513,7 +536,8 @@ public: | |||||
| " length(q - p));" | " length(q - p));" | ||||
| "}" | "}" | ||||
| "" | "" | ||||
| "float3 nearest3(float2 p, float4 in_TexelSize) {" | |||||
| "float3 nearest3(float2 p, float4 in_TexelSize)" | |||||
| "{" | |||||
| " float2 q = p + float2(-0.5, 0.5) * in_TexelSize.xy;" | " float2 q = p + float2(-0.5, 0.5) * in_TexelSize.xy;" | ||||
| " q -= fmod(q, 2.0 * in_TexelSize.xy);" | " q -= fmod(q, 2.0 * in_TexelSize.xy);" | ||||
| " q += float2(1.5, 0.5) * in_TexelSize.xy;" | " q += float2(1.5, 0.5) * in_TexelSize.xy;" | ||||