diff options
Diffstat (limited to 'drivers/gles3/shaders/ssao.glsl')
| -rw-r--r-- | drivers/gles3/shaders/ssao.glsl | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/gles3/shaders/ssao.glsl b/drivers/gles3/shaders/ssao.glsl index 0e8fc89d6c..c668e63745 100644 --- a/drivers/gles3/shaders/ssao.glsl +++ b/drivers/gles3/shaders/ssao.glsl @@ -65,7 +65,12 @@ layout(location = 0) out float visibility; uniform vec4 proj_info; vec3 reconstructCSPosition(vec2 S, float z) { - return vec3((S.xy * proj_info.xy + proj_info.zw) * z, z); +#ifdef USE_ORTHOGONAL_PROJECTION + return vec3((S.xy * proj_info.xy + proj_info.zw), z); +#else + return vec3((S.xy * proj_info.xy + proj_info.zw) * z, z); + +#endif } vec3 getPosition(ivec2 ssP) { @@ -73,7 +78,11 @@ vec3 getPosition(ivec2 ssP) { P.z = texelFetch(source_depth, ssP, 0).r; P.z = P.z * 2.0 - 1.0; +#ifdef USE_ORTHOGONAL_PROJECTION + P.z = ((P.z + (camera_z_far + camera_z_near)/(camera_z_far - camera_z_near)) * (camera_z_far - camera_z_near))/2.0; +#else P.z = 2.0 * camera_z_near * camera_z_far / (camera_z_far + camera_z_near - P.z * (camera_z_far - camera_z_near)); +#endif P.z = -P.z; // Offset to pixel center @@ -118,7 +127,12 @@ vec3 getOffsetPosition(ivec2 ssC, vec2 unitOffset, float ssR) { //read from depth buffer P.z = texelFetch(source_depth, mipP, 0).r; P.z = P.z * 2.0 - 1.0; +#ifdef USE_ORTHOGONAL_PROJECTION + P.z = ((P.z + (camera_z_far + camera_z_near)/(camera_z_far - camera_z_near)) * (camera_z_far - camera_z_near))/2.0; +#else P.z = 2.0 * camera_z_near * camera_z_far / (camera_z_far + camera_z_near - P.z * (camera_z_far - camera_z_near)); + +#endif P.z = -P.z; } else { @@ -214,8 +228,11 @@ void main() { // Choose the screen-space sample radius // proportional to the projected area of the sphere +#ifdef USE_ORTHOGONAL_PROJECTION + float ssDiskRadius = -proj_scale * radius; +#else float ssDiskRadius = -proj_scale * radius / C.z; - +#endif float sum = 0.0; for (int i = 0; i < NUM_SAMPLES; ++i) { sum += sampleAO(ssC, C, n_C, ssDiskRadius, radius,i, randomPatternRotationAngle); |