Differential D10978 Diff 36325 source/blender/nodes/geometry/nodes/node_geo_attribute_sample_texture.cc

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source/blender/nodes/geometry/nodes/node_geo_attribute_sample_texture.cc

Show First 20 Lines • Show All 80 Lines • ▼ Show 20 Lines	static void execute_on_component(GeometryComponent &component, const GeoNodeExecParams &params)
const std::string mapping_name = params.get_input<std::string>("Mapping");		const std::string mapping_name = params.get_input<std::string>("Mapping");
if (!component.attribute_exists(mapping_name)) {		if (!component.attribute_exists(mapping_name)) {
return;		return;
}		}

const AttributeDomain result_domain = get_result_domain(		const AttributeDomain result_domain = get_result_domain(
component, result_attribute_name, mapping_name);		component, result_attribute_name, mapping_name);

OutputAttribute_Typed<Color4f> attribute_out =		OutputAttribute_Typed<ColorGeometry4f> attribute_out =
component.attribute_try_get_for_output_only<Color4f>(result_attribute_name, result_domain);		component.attribute_try_get_for_output_only<ColorGeometry4f>(result_attribute_name,
		result_domain);
if (!attribute_out) {		if (!attribute_out) {
return;		return;
}		}

GVArray_Typed<float3> mapping_attribute = component.attribute_get_for_read<float3>(		GVArray_Typed<float3> mapping_attribute = component.attribute_get_for_read<float3>(
mapping_name, result_domain, {0, 0, 0});		mapping_name, result_domain, {0, 0, 0});

MutableSpan<Color4f> colors = attribute_out.as_span();		MutableSpan<ColorGeometry4f> colors = attribute_out.as_span();
for (const int i : IndexRange(mapping_attribute.size())) {		for (const int i : IndexRange(mapping_attribute.size())) {
TexResult texture_result = {0};		TexResult texture_result = {0};
const float3 position = mapping_attribute[i];		const float3 position = mapping_attribute[i];
/* For legacy reasons we have to map [0, 1] to [-1, 1] to support uv mappings. */		/* For legacy reasons we have to map [0, 1] to [-1, 1] to support uv mappings. */
const float3 remapped_position = position * 2.0f - float3(1.0f);		const float3 remapped_position = position * 2.0f - float3(1.0f);
BKE_texture_get_value(nullptr, texture, remapped_position, &texture_result, false);		BKE_texture_get_value(nullptr, texture, remapped_position, &texture_result, false);
colors[i] = {texture_result.tr, texture_result.tg, texture_result.tb, texture_result.ta};		colors[i] = {texture_result.tr, texture_result.tg, texture_result.tb, texture_result.ta};
}		}
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