diff options
Diffstat (limited to 'drivers/gles3/shaders/canvas.glsl')
| -rw-r--r-- | drivers/gles3/shaders/canvas.glsl | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/gles3/shaders/canvas.glsl b/drivers/gles3/shaders/canvas.glsl index 974eff86f3..0d1e7ee4a1 100644 --- a/drivers/gles3/shaders/canvas.glsl +++ b/drivers/gles3/shaders/canvas.glsl @@ -173,6 +173,9 @@ VERTEX_SHADER_CODE #ifdef USE_PIXEL_SNAP outvec.xy = floor(outvec + 0.5).xy; + // precision issue on some hardware creates artifacts within texture + // offset uv by a small amount to avoid + uv_interp += 1e-5; #endif #ifdef USE_SKELETON @@ -495,7 +498,7 @@ FRAGMENT_SHADER_CODE #endif } #ifdef DEBUG_ENCODED_32 - highp float enc32 = dot(color, highp vec4(1.0 / (256.0 * 256.0 * 256.0), 1.0 / (256.0 * 256.0), 1.0 / 256.0, 1)); + highp float enc32 = dot(color, highp vec4(1.0 / (256.0 * 256.0 * 256.0), 1.0 / (256.0 * 256.0), 1.0 / 256.0, 1.0)); color = vec4(vec3(enc32), 1.0); #endif @@ -549,7 +552,10 @@ FRAGMENT_SHADER_CODE color *= light; #ifdef USE_SHADOWS - light_vec = light_uv_interp.zw; //for shadows + // Reset light_vec to compute shadows, the shadow map is created from the light origin, so it only + // makes sense to compute shadows from there. + light_vec = light_uv_interp.zw; + float angle_to_light = -atan(light_vec.x, light_vec.y); float PI = 3.14159265358979323846264; /*int i = int(mod(floor((angle_to_light+7.0*PI/6.0)/(4.0*PI/6.0))+1.0, 3.0)); // +1 pq os indices estao em ordem 2,0,1 nos arrays @@ -586,7 +592,7 @@ FRAGMENT_SHADER_CODE #ifdef USE_RGBA_SHADOWS -#define SHADOW_DEPTH(m_tex, m_uv) dot(texture((m_tex), (m_uv)), vec4(1.0 / (256.0 * 256.0 * 256.0), 1.0 / (256.0 * 256.0), 1.0 / 256.0, 1)) +#define SHADOW_DEPTH(m_tex, m_uv) dot(texture((m_tex), (m_uv)), vec4(1.0 / (256.0 * 256.0 * 256.0), 1.0 / (256.0 * 256.0), 1.0 / 256.0, 1.0)) #else |