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[workaround] pinches parallax steps so the 0-1 range has minimal artifacting

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This commit is contained in:
Azaezel 2016-12-06 23:41:28 -06:00
parent 0db0a53333
commit 0049678c25
2 changed files with 16 additions and 16 deletions
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16
Templates/Full/game/shaders/common/gl/torque.glsl
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@ -138,13 +138,13 @@ mat3x3 quatToMat( vec4 quat )
///
vec2 parallaxOffset( sampler2D texMap, vec2 texCoord, vec3 negViewTS, float depthScale )
{
float depth = texture( texMap, texCoord ).a;
vec2 offset = negViewTS.xy * vec2( depth * depthScale );
float depth = texture( texMap, texCoord ).a/(PARALLAX_REFINE_STEPS*2);
vec2 offset = negViewTS.xy * vec2( depth * depthScale )/vec2(PARALLAX_REFINE_STEPS*2);
for ( int i=0; i < PARALLAX_REFINE_STEPS; i++ )
{
depth = ( depth + texture( texMap, texCoord + offset ).a ) * 0.5;
offset = negViewTS.xy * vec2( depth * depthScale );
depth = ( depth + texture( texMap, texCoord + offset ).a )/(PARALLAX_REFINE_STEPS*2);
offset = negViewTS.xy * vec2( depth * depthScale )/vec2(PARALLAX_REFINE_STEPS*2);
}
return offset;
@ -153,13 +153,13 @@ vec2 parallaxOffset( sampler2D texMap, vec2 texCoord, vec3 negViewTS, float dept
/// Same as parallaxOffset but for dxtnm where depth is stored in the red channel instead of the alpha
vec2 parallaxOffsetDxtnm(sampler2D texMap, vec2 texCoord, vec3 negViewTS, float depthScale)
{
float depth = texture(texMap, texCoord).r;
vec2 offset = negViewTS.xy * vec2(depth * depthScale);
float depth = texture(texMap, texCoord).r/(PARALLAX_REFINE_STEPS*2);
vec2 offset = negViewTS.xy * vec2(depth * depthScale)/vec2(PARALLAX_REFINE_STEPS*2);
for (int i = 0; i < PARALLAX_REFINE_STEPS; i++)
{
depth = (depth + texture(texMap, texCoord + offset).r) * 0.5;
offset = negViewTS.xy * vec2(depth * depthScale);
depth = (depth + texture(texMap, texCoord + offset).r)/(PARALLAX_REFINE_STEPS*2);
offset = negViewTS.xy * vec2(depth * depthScale)/vec2(PARALLAX_REFINE_STEPS*2);
}
return offset;

16
Templates/Full/game/shaders/common/torque.hlsl
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@ -140,13 +140,13 @@ float3x3 quatToMat( float4 quat )
///
float2 parallaxOffset(TORQUE_SAMPLER2D(texMap), float2 texCoord, float3 negViewTS, float depthScale)
{
float depth = TORQUE_TEX2D(texMap, texCoord).a;
float2 offset = negViewTS.xy * (depth * depthScale);
float depth = TORQUE_TEX2D(texMap, texCoord).a/(PARALLAX_REFINE_STEPS*2);
float2 offset = negViewTS.xy * (depth * depthScale)/(PARALLAX_REFINE_STEPS);
for (int i = 0; i < PARALLAX_REFINE_STEPS; i++)
{
depth = (depth + TORQUE_TEX2D(texMap, texCoord + offset).a) * 0.5;
offset = negViewTS.xy * (depth * depthScale);
depth = (depth + TORQUE_TEX2D(texMap, texCoord + offset).a)/(PARALLAX_REFINE_STEPS*2);
offset = negViewTS.xy * (depth * depthScale)/(PARALLAX_REFINE_STEPS);
}
return offset;
@ -155,13 +155,13 @@ float2 parallaxOffset(TORQUE_SAMPLER2D(texMap), float2 texCoord, float3 negViewT
/// Same as parallaxOffset but for dxtnm where depth is stored in the red channel instead of the alpha
float2 parallaxOffsetDxtnm(TORQUE_SAMPLER2D(texMap), float2 texCoord, float3 negViewTS, float depthScale)
{
float depth = TORQUE_TEX2D(texMap, texCoord).r;
float2 offset = negViewTS.xy * (depth * depthScale);
float depth = TORQUE_TEX2D(texMap, texCoord).r/(PARALLAX_REFINE_STEPS*2);
float2 offset = negViewTS.xy * (depth * depthScale)/(PARALLAX_REFINE_STEPS*2);
for (int i = 0; i < PARALLAX_REFINE_STEPS; i++)
{
depth = (depth + TORQUE_TEX2D(texMap, texCoord + offset).r) * 0.5;
offset = negViewTS.xy * (depth * depthScale);
depth = (depth + TORQUE_TEX2D(texMap, texCoord + offset).r)/(PARALLAX_REFINE_STEPS*2);
offset = negViewTS.xy * (depth * depthScale)/(PARALLAX_REFINE_STEPS*2);
}
return offset;