diff options
| -rw-r--r-- | intern/cycles/kernel/osl/osl_shader.cpp | 30 | ||||
| -rw-r--r-- | intern/cycles/kernel/shaders/node_rgb_ramp.osl | 3 | ||||
| -rw-r--r-- | intern/cycles/kernel/svm/svm_ramp.h | 3 |
3 files changed, 24 insertions, 12 deletions
diff --git a/intern/cycles/kernel/osl/osl_shader.cpp b/intern/cycles/kernel/osl/osl_shader.cpp index 67a0e16419c..f72e4dd1384 100644 --- a/intern/cycles/kernel/osl/osl_shader.cpp +++ b/intern/cycles/kernel/osl/osl_shader.cpp @@ -150,13 +150,14 @@ static void flatten_surface_closure_tree(ShaderData *sd, bool no_glossy, /* sample weight */ float sample_weight = fabsf(average(weight)); - sd->flag |= bsdf->shaderdata_flag(); - sc.sample_weight = sample_weight; sc.type = bsdf->shaderclosure_type(); /* add */ - sd->closure[sd->num_closure++] = sc; + if(sc.sample_weight > 1e-5f && sd->num_closure < MAX_CLOSURE) { + sd->closure[sd->num_closure++] = sc; + sd->flag |= bsdf->shaderdata_flag(); + } break; } case OSL::ClosurePrimitive::Emissive: { @@ -170,9 +171,10 @@ static void flatten_surface_closure_tree(ShaderData *sd, bool no_glossy, sc.type = CLOSURE_EMISSION_ID; /* flag */ - sd->flag |= SD_EMISSION; - - sd->closure[sd->num_closure++] = sc; + if(sd->num_closure < MAX_CLOSURE) { + sd->closure[sd->num_closure++] = sc; + sd->flag |= SD_EMISSION; + } break; } case AmbientOcclusion: { @@ -185,8 +187,10 @@ static void flatten_surface_closure_tree(ShaderData *sd, bool no_glossy, sc.sample_weight = sample_weight; sc.type = CLOSURE_AMBIENT_OCCLUSION_ID; - sd->closure[sd->num_closure++] = sc; - sd->flag |= SD_AO; + if(sd->num_closure < MAX_CLOSURE) { + sd->closure[sd->num_closure++] = sc; + sd->flag |= SD_AO; + } break; } case OSL::ClosurePrimitive::Holdout: @@ -195,8 +199,11 @@ static void flatten_surface_closure_tree(ShaderData *sd, bool no_glossy, sc.sample_weight = 0.0f; sc.type = CLOSURE_HOLDOUT_ID; - sd->flag |= SD_HOLDOUT; - sd->closure[sd->num_closure++] = sc; + + if(sd->num_closure < MAX_CLOSURE) { + sd->closure[sd->num_closure++] = sc; + sd->flag |= SD_HOLDOUT; + } break; case OSL::ClosurePrimitive::BSSRDF: case OSL::ClosurePrimitive::Debug: @@ -334,7 +341,8 @@ static void flatten_volume_closure_tree(ShaderData *sd, sc.type = CLOSURE_VOLUME_ID; /* add */ - sd->closure[sd->num_closure++] = sc; + if(sc.sample_weight > 1e-5f && sd->num_closure < MAX_CLOSURE) + sd->closure[sd->num_closure++] = sc; break; } case OSL::ClosurePrimitive::Holdout: diff --git a/intern/cycles/kernel/shaders/node_rgb_ramp.osl b/intern/cycles/kernel/shaders/node_rgb_ramp.osl index a128ebbd1cf..c7bb53bfefc 100644 --- a/intern/cycles/kernel/shaders/node_rgb_ramp.osl +++ b/intern/cycles/kernel/shaders/node_rgb_ramp.osl @@ -29,7 +29,10 @@ shader node_rgb_ramp( { float f = clamp(Fac, 0.0, 1.0) * (RAMP_TABLE_SIZE - 1); + /* clamp int as well in case of NaN */ int i = (int)f; + if(i < 0) i = 0; + if(i >= RAMP_TABLE_SIZE) i = RAMP_TABLE_SIZE-1; float t = f - (float)i; Color = ramp_color[i]; diff --git a/intern/cycles/kernel/svm/svm_ramp.h b/intern/cycles/kernel/svm/svm_ramp.h index 55c2b3f6af4..c64413cbe84 100644 --- a/intern/cycles/kernel/svm/svm_ramp.h +++ b/intern/cycles/kernel/svm/svm_ramp.h @@ -25,7 +25,8 @@ __device float4 rgb_ramp_lookup(KernelGlobals *kg, int offset, float f) { f = clamp(f, 0.0f, 1.0f)*(RAMP_TABLE_SIZE-1); - int i = (int)f; + /* clamp int as well in case of NaN */ + int i = clamp((int)f, 0, RAMP_TABLE_SIZE-1); float t = f - (float)i; float4 a = fetch_node_float(kg, offset+i); |