test2/intern/cycles/kernel/osl/shaders/node_camera.osl

/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
 *
 * SPDX-License-Identifier: Apache-2.0 */

#include "stdcycles.h"

shader node_camera(output vector ViewVector = vector(0.0, 0.0, 0.0),
                   output float ViewZDepth = 0.0,
                   output float ViewDistance = 0.0)
{
  ViewVector = (vector)transform("world", "camera", P);

  ViewZDepth = ViewVector[2];
  ViewDistance = length(ViewVector);

  ViewVector = normalize(ViewVector);
}
License headers: use SPDX-FileCopyrightText for .inl and .osl files 2023-08-04 13:24:17 +10:00			`/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation`
			`*`
			`* SPDX-License-Identifier: Apache-2.0 */`
CameraData Input Cycles Node ---------------------------- reviewed and approved by Brecht Important note: the camera Z is reverted compared to Blender render. Now it goes from zero (camera) to positive (in front of the camera) 2011-12-02 20:36:13 +00:00
Cleanup: Fix build warnings from OSL shader compilation There were to copies of stdosl.h one from stock OSL and one in the cycles tree augmented with cycles specific closures. moved the cycles ones to stdcycles.h and copied the stock stdosl.h and accompanying headers from the OSL shader folder. for further details see D6812. Reviewed By: brecht Differential Revision: https://developer.blender.org/D6812 2020-02-11 21:40:23 -07:00			`#include "stdcycles.h"`
CameraData Input Cycles Node ---------------------------- reviewed and approved by Brecht Important note: the camera Z is reverted compared to Blender render. Now it goes from zero (camera) to positive (in front of the camera) 2011-12-02 20:36:13 +00:00
			`shader node_camera(output vector ViewVector = vector(0.0, 0.0, 0.0),`
			`output float ViewZDepth = 0.0,`
			`output float ViewDistance = 0.0)`
			`{`
			`ViewVector = (vector)transform("world", "camera", P);`

Cycles: Align Camera data output between SVM and OSL The `ZDepth` output of the camera data node was different between SVM and OSL. SVM would output the `ZDepth`, with negative distances for points behind the camera. While OSL would output the absolute of the distance, which resulted in points behind the camera becoming positive. Align OSL to SVM and allow outputting the negative distance as it allows users to differentiate between what's in front or behind the camera. Pull Request: https://projects.blender.org/blender/blender/pulls/132837 2025-01-09 12:44:52 +01:00			`ViewZDepth = ViewVector[2];`
Spell check fix (lenght -> length) Note: two remains, in comments in extern/bullet2/src/LinearMath/btVector3.h and extern/libmv/libmv/image/tuple.h. 2012-05-16 14:25:25 +00:00			`ViewDistance = length(ViewVector);`
CameraData Input Cycles Node ---------------------------- reviewed and approved by Brecht Important note: the camera Z is reverted compared to Blender render. Now it goes from zero (camera) to positive (in front of the camera) 2011-12-02 20:36:13 +00:00
			`ViewVector = normalize(ViewVector);`
			`}`