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Fix fxaa shader to use texture

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This commit is contained in:
Zach Pomerantz 2016-02-24 12:54:03 -08:00
parent ea16a659b2
commit 124c84c8b9
1 changed files with 9 additions and 9 deletions
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18
libraries/render-utils/src/fxaa.slf
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@ -44,11 +44,11 @@ void main() {
// fetch raw RGB values for nearby locations
// sampling pattern is "five on a die" (each diagonal direction and the center)
// computing the coordinates for these texture reads could be moved to the vertex shader for speed if needed
vec3 rgbNW = texture2D(colorTexture, varTexcoord + (vec2(-1.0, -1.0) * texcoordOffset)).xyz;
vec3 rgbNE = texture2D(colorTexture, varTexcoord + (vec2(+1.0, -1.0) * texcoordOffset)).xyz;
vec3 rgbSW = texture2D(colorTexture, varTexcoord + (vec2(-1.0, +1.0) * texcoordOffset)).xyz;
vec3 rgbSE = texture2D(colorTexture, varTexcoord + (vec2(+1.0, +1.0) * texcoordOffset)).xyz;
vec3 rgbM = texture2D(colorTexture, varTexcoord).xyz;
vec3 rgbNW = texture(colorTexture, varTexcoord + (vec2(-1.0, -1.0) * texcoordOffset)).xyz;
vec3 rgbNE = texture(colorTexture, varTexcoord + (vec2(+1.0, -1.0) * texcoordOffset)).xyz;
vec3 rgbSW = texture(colorTexture, varTexcoord + (vec2(-1.0, +1.0) * texcoordOffset)).xyz;
vec3 rgbSE = texture(colorTexture, varTexcoord + (vec2(+1.0, +1.0) * texcoordOffset)).xyz;
vec3 rgbM = texture(colorTexture, varTexcoord).xyz;
// convert RGB values to luminance
vec3 luma = vec3(0.299, 0.587, 0.114);
@ -76,11 +76,11 @@ void main() {
// perform additional texture sampling perpendicular to gradient
vec3 rgbA = (1.0 / 2.0) * (
texture2D(colorTexture, varTexcoord + dir * (1.0 / 3.0 - 0.5)).xyz +
texture2D(colorTexture, varTexcoord + dir * (2.0 / 3.0 - 0.5)).xyz);
texture(colorTexture, varTexcoord + dir * (1.0 / 3.0 - 0.5)).xyz +
texture(colorTexture, varTexcoord + dir * (2.0 / 3.0 - 0.5)).xyz);
vec3 rgbB = rgbA * (1.0 / 2.0) + (1.0 / 4.0) * (
texture2D(colorTexture, varTexcoord + dir * (0.0 / 3.0 - 0.5)).xyz +
texture2D(colorTexture, varTexcoord + dir * (3.0 / 3.0 - 0.5)).xyz);
texture(colorTexture, varTexcoord + dir * (0.0 / 3.0 - 0.5)).xyz +
texture(colorTexture, varTexcoord + dir * (3.0 / 3.0 - 0.5)).xyz);
float lumaB = dot(rgbB, luma);
// compare luma of new samples to the luma range of the original neighborhood