gary
1 changed files with 41 additions and 10 deletions
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+41 -10test/tutorial/tut03.cpp
+ 41
- 10
test/tutorial/tut03.cpp
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| @@ -135,7 +135,7 @@ public: | |||||
| f64cmplx oldcenter = m_center; | f64cmplx oldcenter = m_center; | ||||
| double oldradius = m_radius; | double oldradius = m_radius; | ||||
| #ifdef __CELLOS_LV2__ | #ifdef __CELLOS_LV2__ | ||||
| m_radius *= pow(2.0, -deltams * 0.00015); | |||||
| m_radius *= pow(2.0, -deltams * 0.0005); | |||||
| m_center = f64cmplx(0.001643721971153, 0.822467633298876); | m_center = f64cmplx(0.001643721971153, 0.822467633298876); | ||||
| #else | #else | ||||
| double zoom = pow(2.0, (buttons[0] ? -deltams : deltams) * 0.0025); | double zoom = pow(2.0, (buttons[0] ? -deltams : deltams) * 0.0025); | ||||
| @@ -314,7 +314,7 @@ public: | |||||
| /* Slightly shift our pixel so that it does not lie at | /* Slightly shift our pixel so that it does not lie at | ||||
| * an exact texel boundary. This would lead to visual | * an exact texel boundary. This would lead to visual | ||||
| * artifacts. */ | * artifacts. */ | ||||
| "coord -= 0.1 * in_PixelDelta.x;" | |||||
| " coord -= 0.1 * in_PixelDelta.xy;" | |||||
| /* Get a pixel from each slice */ | /* Get a pixel from each slice */ | ||||
| " vec4 p0 = texture2D(in_Texture, nearest0(coord).xy);" | " vec4 p0 = texture2D(in_Texture, nearest0(coord).xy);" | ||||
| " vec4 p1 = texture2D(in_Texture, nearest1(coord).xy);" | " vec4 p1 = texture2D(in_Texture, nearest1(coord).xy);" | ||||
| @@ -332,19 +332,50 @@ public: | |||||
| " out_Position = in_Position;" | " out_Position = in_Position;" | ||||
| "}", | "}", | ||||
| "void main(float4 in_FragCoord : WPOS," | |||||
| " float2 in_TexCoord : TEXCOORD0," | |||||
| "float3 nearest0(float2 p, float4 in_PixelDelta) {" | |||||
| " float2 q = p + 0.5 * in_PixelDelta.xy;" | |||||
| " q -= fmod(q, 2.0 * in_PixelDelta.xy);" | |||||
| " q += 0.5 * in_PixelDelta.xy;" | |||||
| " return float3(q * float2(1.0, 0.25)," | |||||
| " length(q - p));" | |||||
| "}" | |||||
| "" | |||||
| "float3 nearest1(float2 p, float4 in_PixelDelta) {" | |||||
| " float2 q = p - 0.5 * in_PixelDelta.xy;" | |||||
| " q -= fmod(q, 2.0 * in_PixelDelta.xy);" | |||||
| " q += 1.5 * in_PixelDelta.xy;" | |||||
| " return float3(q * float2(1.0, 0.25) + float2(0.0, 0.25)," | |||||
| " length(q - p));" | |||||
| "}" | |||||
| "" | |||||
| "float3 nearest2(float2 p, float4 in_PixelDelta) {" | |||||
| " float2 q = p + float2(0.5, -0.5) * in_PixelDelta.xy;" | |||||
| " q -= fmod(q, 2.0 * in_PixelDelta.xy);" | |||||
| " q += float2(0.5, 1.5) * in_PixelDelta.xy;" | |||||
| " return float3(q * float2(1.0, 0.25) + float2(0.0, 0.50)," | |||||
| " length(q - p));" | |||||
| "}" | |||||
| "" | |||||
| "float3 nearest3(float2 p, float4 in_PixelDelta) {" | |||||
| " float2 q = p + float2(-0.5, 0.5) * in_PixelDelta.xy;" | |||||
| " q -= fmod(q, 2.0 * in_PixelDelta.xy);" | |||||
| " q += float2(1.5, 0.5) * in_PixelDelta.xy;" | |||||
| " return float3(q * float2(1.0, 0.25) + float2(0.0, 0.75)," | |||||
| " length(q - p));" | |||||
| "}" | |||||
| "" | |||||
| "void main(float2 in_TexCoord : TEXCOORD0," | |||||
| " uniform float4 in_PixelDelta," | " uniform float4 in_PixelDelta," | ||||
| " uniform sampler2D in_Texture," | " uniform sampler2D in_Texture," | ||||
| " out float4 out_FragColor : COLOR)" | " out float4 out_FragColor : COLOR)" | ||||
| "{" | "{" | ||||
| " float2 coord = in_TexCoord.xy;" | " float2 coord = in_TexCoord.xy;" | ||||
| " float i = frac((in_FragCoord.x - 0.5) * 0.5) * 2.0;" | |||||
| " float j = frac((in_FragCoord.y - 0.5 + i) * 0.5) * 2.0;" | |||||
| " coord.y += i + j * 2;" | |||||
| " coord.y *= 0.25;" | |||||
| " float4 p = tex2D(in_Texture, coord);" | |||||
| " out_FragColor = p;" | |||||
| " coord -= 0.1 * in_PixelDelta.xy;" | |||||
| " float4 p0 = tex2D(in_Texture, nearest0(coord, in_PixelDelta).xy);" | |||||
| " float4 p1 = tex2D(in_Texture, nearest1(coord, in_PixelDelta).xy);" | |||||
| " float4 p2 = tex2D(in_Texture, nearest2(coord, in_PixelDelta).xy);" | |||||
| " float4 p3 = tex2D(in_Texture, nearest3(coord, in_PixelDelta).xy);" | |||||
| " out_FragColor = 0.25 * (p0 + p1 + p2 + p3);" | |||||
| "}" | "}" | ||||
| #endif | #endif | ||||
| ); | ); | ||||